More than a third of smokers in Bath and North East Somerset admit buying illegal tobacco with one in five across the west saying they've bought bootleg supplies.
The shock findings come on the day the police and revenue and customs launch a fresh crackdown on the illegal trade which is often linked to organised crime.
Bob Gaiger is from HM Revenue & Customs:
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Rishi has the forecast for Devon, Cornwall, Somerset and Dorset.
Rishi has the forecast for Bristol, Wiltshire, Gloucestershire, Dorset and Somerset.
Expect scattered showers tonight. Tomorrow will be similar to today, except there'll be fewer showers. Sunny between the rain. Feeling fresh